1.	National Basketball Association.

2.	Also, N.B.A. National Book Award.

3.	National Boxing Association.

–verb (used with object)

1.	to wager with (something or 1bbd someone).

–verb (used without object)

2.	to make a wager: Do you want to bet?

–noun

3.	a pledge of a forfeit risked on some uncertain outcome; wager: Where do we place our bets?

4.	that which is pledged: a two-dollar bet.

5.	something that is bet on, as a competitor in a sporting event or a number in a lottery: That horse looks like a good bet.

6.	an act or instance of betting: It's a bet, then?

7.	a person, plan of action, etc., considered as being a good alternative; choice: Your best bet is to sell your stocks now.

—Idiom

8.	you bet! Informal. of course! surely!: You bet I'd like to be there!